NGC 6166C PGC 61312
Her
☀14.4mag
Ø 24''

Édouard Stephan discovered NGC 6074 = St VII-3 on 21 Jun 1874. His position is an exact match with the northern component of this double system.

400/500mm - 17.5" very faint, very small, round. A mag 12 star is 1.0' WSW. An extremely faint anonymous companion is at south end 15" from the center. NGC 6078 lies 12' ESE.

600/800mm - 24" (7/24/14): this contact pair was nearly tangent at 260x and barely resolved at 375x. The brighter component, MCG +02-41-016, is on the north end and appeared faint, very small, round, 12" diameter. The fainter component, MCG +02-41-016, is attached at the south-southwest end (just 15" between centers!) and was very faint, round, 9" diameter. Located 1.0' ENE of a mag 11.9 star. NGC 6078, another close double system, lies 12' ESE.

2MFGC 13014, located 3.7' NE, appeared extremely faint, small, elongated 2:1 N-S, 15"x8". At B = 17.3, it required averted vision to glimpse.

Notes by Steve Gottlieb